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My ac in my 02 intrigue blows hot all the time. the freon reads high pressure on the low line. what could the problem be?

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  • Cars & Trucks Master
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Did you check it with the compressor running ? Pressure will be equal on both sides if the compressor is off.

Posted on Jul 21, 2013

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Posted on Jan 02, 2017

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ourhowse
  • 2007 Answers

SOURCE: 00 jetta ac not cooling, fans and a/c comp./clutch

I would guess your freon has slowly leaked out, and now simply needs to be recharged. You can buy an AC recharge kit with R134 at Walmart or someplace, and do it yourself quite reasonably. If it doesn't cool after that the way everything else seems to be normal, it would probably have to be the temperature control switch.

Posted on Jun 08, 2009

  • 82 Answers

SOURCE: Where is the low pressure line AC for Express 1500

Look for the accumulator(silver can a/c lines go to) on the passenger side of engine area. The Low side charging port cap should be on the side of the accumulator.

Posted on Jun 23, 2009

  • 295 Answers

SOURCE: pressure on low & high side reads 110 psi and wont charge

Check the exspansion valve its part of the evaperator on that car for being clogged.

Posted on Jul 07, 2009

heavymetal77
  • 721 Answers

SOURCE: ac not working, blows hot air only. Recharged

Check the evaporator coil by sniffing the vents,floor is best, with your tester.

Posted on Jul 16, 2009

SOURCE: 2000 dodge ram pick up - ac blows hot air and freon is good

expansion valve looks like is not openning or the capilary tube is bad

Posted on Aug 02, 2009

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Ac trouble shooting for a 2002 olds intrigue I have a 02 olds intrigue 3.5 LTE engine My ac compressor constantly runs it has pressure in line but not blowing cold air and help would be appreciated


Where the A/C hoses go into the fire wall , are there hot , cold ? Low on refrigerant . Not blowing cold air , is there air blowing out of the center vents ?

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Is the compressor running ? What are the low and high pressure readings ?
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My ac is blowing hot air. I've checked the gas and it's full. The compressor seems to cut on and off about every 10-15 sec. Do I need a new compressor or do I have some sort of fault switch? Any...


Hello, You need to check how much Low end pressure you have. The Low pressure cutoff switch will disconnect the compressor if the pressure is too low. The high end pressure switch will do the same thing for extreme pressure.

Sometimes the Low pressure switch will get weak and cut off the system too early. Just change this switch which will come out with only a slight puff of Freon being lost. You can jump the connector with a U shaped wire and bypass the Low pressure cutoff switch. If the compressor works better and does not cut out, it can still be low on Freon or have a bad Low pressure switch.

However, if the compressor cuts out a Second time with the Low pressure switch bypassed, the system is probably overcharged and the HIGH pressure switch is cutting off the compressor. You need to purge some Freon out of the system if High pressure is indicated.

Where it gets tricky is the Compressor will compress both Freon and Atmospheric air. Your efficency drops when the Freon is displaced by Atmospheric air. You will need to find the leak in the system which is allowing Freon to leak and outside air to enter the system. You will get a pressure reading with any gas in the lines.

There are Leak detectors and sealers for the system. I hope you just have a bad low pressure switch which is the easiest solution.

Jun 25, 2011 | Ford F-150 Cars & Trucks

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A/C is blowing hot air. Freon is full, compressor


Not sure how you know if the freon is full without the unit running. There are a number of switches which can keep your A/C from coming on. There is a low pressure switch which is usually located on the larger line and sometimes located on a silver cannister (called an accumulator) which is the low side of a compressor circuit. There is also a high pressure cutout which is usually located on the back of the compressor unit. Both of these switches can be jumpered out to see if they are the reason for the compressor not working. You remove the two wire connector to either switch and place a small jumper wire between the two wires on the connector block. The other reason my be a low idle cutout switch and this will also usually be located near on on the compressor. You can also test it the same way as the other switches. If it is the low pressure switch then of course you will need to add freon which you can purchase from any auto parts store. They usually come with instructions and all the equipment needed to add in freon. If it is high pressure, then some of the freon should be recovered from the system by a technician. If is the low idle cutout then you will have to take it to a mechanic to understand why it is idling so low. Hope this helps.

Jul 16, 2010 | 2004 Kia Sedona

1 Answer

'96 seville sls 4.6L, a/c seems to have a blocked passage. high presure line is hot, gauge has 300# on a 80 deg. day, the line just after the orifice tube is cold until freon enters the evaporator, gauge...


what makes u say ur ac refrigerant has a blocked passage? check the low pressure line by touching it with ur hand while ac is running/ it has to be freezing cold/ if not cooling it means ur compressor is weak and or refrigerant is low/ high pressure line is normally hot/ check ac magnetic clutch operation must engage when ac switch is on and disengage when ac is turned off/ check ac condenser must be blocked and needs cleaning....

Apr 09, 2010 | 1997 Cadillac Seville

1 Answer

Today the A/C stopped blowing cold air yesterday it was fine, Nothing but hot air was coming our of vents


Look for leaks around the A/C hoses and compressor. You may just be low on Freon. When the pressure in your lines (amount of gas in your ac lines) is low, the ac will just cutout hence blowing hot air. try adding some freon.

Jul 06, 2009 | 1998 Ford Windstar

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Hi, my husband and i have a 2006 optima. te ac


Absolutely not!  Never attempt to recharge from the high side. Recharging from the high side is extremely dangerous and could do harm to both you and the car.  If the low side pressure is only 10psi, you are low on refrigerant.  Most cars require 20psi to operate the compressor and should never fill to more than 40-45psi unless recommended by the manufacturer.  I'd re-check the pressure readings.  It's possible that instead of charging the system, while hooking up the hose, you've let freon escape, accounting for the hissing noise and the low pressure reading.  When recharging the AC system, it's important to have the car running and have the AC on high.  It's possible, you didn't have a good connection to the low side which also would account for the escaping refrigerant.  I hope this answers your question.  I'd try to recharge the system again on the low side, making sure the connection is good both at the low side valve and on the can of refrigerant.  Best of luck.
Greg

Jun 27, 2009 | 2005 Kia Optima

2 Answers

After approx 40 min of highway driving the AC stops blowing cold


The frosting of the line is normal. Did you use a gauge set when charging the unit? AND, most important, Did you evacuate the system before putting in the freon? Very important.What was your final low side reading and your final high side reading?

Jun 02, 2009 | 2003 Hyundai Santa Fe

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